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Definition of Meta-analysis

Babylon English

technique or procedure of synthesizing the results of a research by combining the results of a number of independent studies
Meta-analysis Definition from Medicine Dictionaries & Glossaries
Glossary of Terms
Process of using statistical methods to combine the results of different studies. A frequent application is pooling the results from a set of randomized controlled trials, none of which alone is powerful enough to demonstrate statistical significance.
National Institutes of Health
The Glossary of the American Council on Science and Health
A method for statistically combining the findings of independent studies (usually published studies and usually many) into a group of conclusions.
Meta-analysis Definition from Society & Culture Dictionaries & Glossaries
Social Work in Canada
A statistical technique to combine information from many empirical studies on a topic to objectively estimate the reliability and overall size of the effect.
Meta-analysis Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In statistics, meta-analysis refers to statistical methods for contrasting and combining results from different studies, in the hope of identifying patterns among study results, sources of disagreement among those results, or other interesting relationships that may come to light in the context of multiple studies. Meta-analysis can be thought of as "conducting research about previous research." In its simplest form, meta-analysis is done by identifying a common statistical measure that is shared between studies, such as effect size or p-value, and calculating a weighted average of that common measure. This weighting is usually related to the sample sizes of the individual studies, although it can also include other factors, such as study quality.

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